FCC Registration Number
FRN 0003774478
CORES registration
- CORES status
- discovered
Public regulatory phone numbers
| Number | Contact | Source | Confidence |
|---|
| (202) 659-0830 | John Prendergast Blooston, Mordkofsky, Dickens & Prendergast, LLP service_agent | FORM499 | 95.0% |
| (507) 557-2275 | Winthrop Tel. Co. customer_inquiries | FORM499 | 100.0% |
| (507) 557-2275 | Kathy Larson mitigation_contact | RMD | 100.0% |
FCC Form 499 filers
| Current as of | Filer ID | Legal name |
|---|
| 2026-04-01 | 804102 | Winthrop Tel. Co. |
Robocall Mitigation Database filings
| Recertified | RMD number | Business |
|---|
| 2026-02-11 | RMD0002293 | Winthrop Telephone Company |
Broadband Data Collection providers
| Publication | Provider ID | Holding company |
|---|
| 2025-12-31 | 130718 | Larson Utilities, Inc. |
Source provenance
| System | Record | Recorded name | Raw FRN | Observed |
|---|
| FORM499 | 804102:949144 | Winthrop Tel. Co. | 0003774478 | 2026-08-26 16:14:22 |
| FORM499 | 804102:949142 | Winthrop Tel. Co. | 0003774478 | 2026-08-26 16:14:22 |
| FORM499 | 804102:949143 | Winthrop Tel. Co. | 0003774478 | 2026-08-26 16:14:22 |
| FORM499 | 804102:893301 | Winthrop Tel. Co. | 0003774478 | 2026-08-25 12:44:16 |
| FORM499 | 804102:893302 | Winthrop Tel. Co. | 0003774478 | 2026-08-25 12:44:16 |
| FORM499 | 804102:893303 | Winthrop Tel. Co. | 0003774478 | 2026-08-25 12:44:16 |
| FORM499 | 804102:837656 | Winthrop Tel. Co. | 0003774478 | 2026-08-24 13:14:12 |
| FORM499 | 804102:837654 | Winthrop Tel. Co. | 0003774478 | 2026-08-24 13:14:12 |
| FORM499 | 804102:837655 | Winthrop Tel. Co. | 0003774478 | 2026-08-24 13:14:12 |
| FORM499 | 804102:782007 | Winthrop Tel. Co. | 0003774478 | 2026-08-23 07:44:09 |
| FORM499 | 804102:782008 | Winthrop Tel. Co. | 0003774478 | 2026-08-23 07:44:09 |
| FORM499 | 804102:782009 | Winthrop Tel. Co. | 0003774478 | 2026-08-23 07:44:09 |
| FORM499 | 804102:726360 | Winthrop Tel. Co. | 0003774478 | 2026-08-22 05:44:01 |
| FORM499 | 804102:726361 | Winthrop Tel. Co. | 0003774478 | 2026-08-22 05:44:01 |
| FORM499 | 804102:726362 | Winthrop Tel. Co. | 0003774478 | 2026-08-22 05:44:01 |
| FORM499 | 804102:670715 | Winthrop Tel. Co. | 0003774478 | 2026-08-11 09:48:53 |
| FORM499 | 804102:670714 | Winthrop Tel. Co. | 0003774478 | 2026-08-11 09:48:53 |
| FORM499 | 804102:670713 | Winthrop Tel. Co. | 0003774478 | 2026-08-11 09:48:53 |
| FORM499 | 804102:615066 | Winthrop Tel. Co. | 0003774478 | 2026-08-10 05:48:45 |
| FORM499 | 804102:615068 | Winthrop Tel. Co. | 0003774478 | 2026-08-10 05:48:45 |
| FORM499 | 804102:615067 | Winthrop Tel. Co. | 0003774478 | 2026-08-10 05:48:45 |
| FORM499 | 804102:559420 | Winthrop Tel. Co. | 0003774478 | 2026-08-09 12:18:45 |
| FORM499 | 804102:559421 | Winthrop Tel. Co. | 0003774478 | 2026-08-09 12:18:45 |
| FORM499 | 804102:559419 | Winthrop Tel. Co. | 0003774478 | 2026-08-09 12:18:45 |
| FORM499 | 804102:503773 | Winthrop Tel. Co. | 0003774478 | 2026-08-08 05:18:39 |
| FORM499 | 804102:503774 | Winthrop Tel. Co. | 0003774478 | 2026-08-08 05:18:39 |
| FORM499 | 804102:503772 | Winthrop Tel. Co. | 0003774478 | 2026-08-08 05:18:39 |
| FORM499 | 804102:448127 | Winthrop Tel. Co. | 0003774478 | 2026-08-06 06:48:29 |
| FORM499 | 804102:448125 | Winthrop Tel. Co. | 0003774478 | 2026-08-06 06:48:29 |
| FORM499 | 804102:448126 | Winthrop Tel. Co. | 0003774478 | 2026-08-06 06:48:29 |
| RMD | 631405 | Minnesota Valley Telephone Company | 0003774478 | 2026-08-06 05:18:27 |
| RMD | 631408 | Winthrop Telephone Company | 0003774478 | 2026-08-06 05:18:27 |
| FORM499 | 804102:392479 | Winthrop Tel. Co. | 0003774478 | 2026-08-05 05:48:24 |
| FORM499 | 804102:392478 | Winthrop Tel. Co. | 0003774478 | 2026-08-05 05:48:24 |
| FORM499 | 804102:392480 | Winthrop Tel. Co. | 0003774478 | 2026-08-05 05:48:24 |
| FORM499 | 804102:336832 | Winthrop Tel. Co. | 0003774478 | 2026-08-04 08:48:20 |
| FORM499 | 804102:336833 | Winthrop Tel. Co. | 0003774478 | 2026-08-04 08:48:20 |
| FORM499 | 804102:336831 | Winthrop Tel. Co. | 0003774478 | 2026-08-04 08:48:20 |
| FORM499 | 804102:281185 | Winthrop Tel. Co. | 0003774478 | 2026-08-03 08:48:16 |
| FORM499 | 804102:281186 | Winthrop Tel. Co. | 0003774478 | 2026-08-03 08:48:16 |
| FORM499 | 804102:281184 | Winthrop Tel. Co. | 0003774478 | 2026-08-03 08:48:16 |
| FORM499 | 804102:225537 | Winthrop Tel. Co. | 0003774478 | 2026-08-02 07:48:13 |
| FORM499 | 804102:225539 | Winthrop Tel. Co. | 0003774478 | 2026-08-02 07:48:13 |
| FORM499 | 804102:225538 | Winthrop Tel. Co. | 0003774478 | 2026-08-02 07:48:13 |
| FORM499 | 804102:169891 | Winthrop Tel. Co. | 0003774478 | 2026-08-01 06:18:09 |
| FORM499 | 804102:169890 | Winthrop Tel. Co. | 0003774478 | 2026-08-01 06:18:09 |
| FORM499 | 804102:169892 | Winthrop Tel. Co. | 0003774478 | 2026-08-01 06:18:09 |
| FORM499 | 804102:114243 | Winthrop Tel. Co. | 0003774478 | 2026-07-31 21:18:05 |
| FORM499 | 804102:114245 | Winthrop Tel. Co. | 0003774478 | 2026-07-31 21:18:05 |
| FORM499 | 804102:114244 | Winthrop Tel. Co. | 0003774478 | 2026-07-31 21:18:05 |
| RMD | RMD0002293 | Winthrop Telephone Company | 0003774478 | 2026-07-31 17:04:42 |
| FORM499 | 804102 | Winthrop Tel. Co. | 0003774478 | 2026-07-31 17:04:38 |
| FORM499 | 1579 | Winthrop Tel. Co. | 0003774478 | 2026-07-31 17:04:36 |
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